★ APPLICATIONS ★ DIVERS ★ PATCH ON ★ |
| Patch On (Your Computer) | Applications Divers |
Anyone Who owns a DMP1 Printer should already know that the character matrix used is only 5 by 7. Whilst the printout is reasonably good, it could be improved by using a larger character matrix. This program does just that. It works by inserting a patch in the appropriate jump block to redirect the printer routine to a new one in memory. The new routine provides the DMP1 with a matrix of 8 by 7 with a maximum width of 60 characters in normal mode and 30 characters when printing double width. Although the width is reduced the clarity is increased considerably, and this ability to redefine the complete printer character set is included. Also the # and £ symbols can be mied without the need to alter the Dip switches on the printer. When the routine is in memory and has been called two RSX commands are logged on. These are:
First of all type in listing one, and save it before running in case of any errors you may make. When this is run, if all is well, you will be given the opportunity to save the resultant code to tape.) Once this is done you can reload it any time with: MEMORY 41659:LOAD"PATCH":CALL 41660 This can either be a direct command or a line within your basic program. Now enter listing two and save it on a separate tape. When this program is run you will be asked for the name of the character set you wish to load. The original is saved as patch. Once you haw loaded the set various options arc open to you. Menu 1.
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